Combined generating and starting apparatus for gas-engines.



J. A. HEANY.

COMBINED GENERATING AND STARTING APPARATUS FOR GAS ENGINES.

WITNESSES APPLICATION FILED JULY 28, 1910.

Patented Nov. 17, 1914 3 SHEETS-SHEET l.

HVVE/VTOR John A/[en Heuny.

' ATTORNEY J. A. HEANY. COMBINED GENERATING AND STARTING APPARATUS FORGAS ENGINES.

APPLICATION FILED JULY 28, 1910.

UIIIIIIIIIIIIII/I/IIA lNl/E/VTUR John Allen He WITNESSES.

any.

2 ATTORNEY J. A. HEANY.

COMBINED GENERATING AND STARTING APPARATUS FOR GAS ENGINES.

APPLICATION FILED JULY 28, 1910.

1,117,378, Patented Nov. 17, 1914.

B SHEETSSHEET 3.

WIT/M8858.- IIVI/E/VTUR V [01:12 Allen Heany.

? BY T M%%W JOHN ALLEN HEANY, OF FLINT, MICHIGAN, ASSIGNOR, BY

MESNE ASSIGNMENTS, T

' A. E. L. LECKIE, OF WASHINGTON, DISTRICT OF CUIQUMBIA.

COMBINED GENERATING AND STARTING- APPARATUS FOR. GAS-ENGINES.

-Specification of Letters Patent. P t t 7 1914 Application filed Julyas, 1910. Serial No. 574,215.

To all whom it may concern Be it known that I, JOHN ALLEN HEANY,

' a citizen of the United States, and a resident of Flint, in the countyof Genesee and State of Michigan, have invented certain new and usefulImprovements in Combined Generating and Starting Apparatus forGas-Engines, of which the following is a full, clear, and exactdescription, whereby any one skilled in the art may make and use thesame.

J The invention relates to ignitionand lighting systems to be used inconnection with prime-movers such as internal combustion engines andmore particularly to a simple and compact arrangement of parts whichwill provide for ignition and other load circuits and in additionthereto may be utilized for giving an initial movement for starting themain prime-mover. More specifically, it relates to a device similar tothat set forth in my former Patent No. 979,003, dated Dec. 20, 1910,although it has additional features of advantage in that' through aseries of clutches and driving devices a maximum torque may be securedfor starting'the isolated unit and through the I combined clutches, thisstarting movement may be utilized in conjunction with the movement ofthe unit to give a very much increased driving eflect upon the shaft ofthe engine to be started. A series of effects v may be secured, in thedriving and driven actions of the dynamo-electric machine and the unitconnected therewith, through the combination. of clutch devices anddriving devices hereinafter described.

The objects of the invention are to provide a complete unit, which maybe operated entirely independently of the main engine or other device,to'which the ignition and load circuits are an appurtenanceand whichwill serveas a powerful driver for starting the main prime mover.

A further object is to utilize unit-parts (that is, the isolatedprime-mover and dynamo electric machine) of very small design which willoccupy practically no more space than the ordinary magneto commonly usedin connection with internal combustion engines and yet will be effectivefor lighting purposes, ignition and load circuits and for starting thecomparatively large main prime mover or engine.

A still further object is to combine the iso- 'and may still be used asthe driving connections between one or both of said parts and the 'mainshaft of the engine to be started.

Referring to the drawings: Figure 1 is a horizontal sectional viewthrough the casmg containing the driving and clutch parts and dynamoelectric machine, the prime mover being shown in plan. Fig. 2 is a viewin side elevation looking from the upper side of Fig. 1. Fig. 3 is adetail view of the planetary gear arrangement illustrated in Fig. 1.Fig. 4 is a perspective view of the operating shafts for the clutches.Fig. 5 is a diagrammatic view illustrating the various parts of themechanism and one form of electrical connections.

'In carrying out the present invention which 1s somewhat analogous tothe invention of the co-pending application hereinbefore referred to,provision has been made for utilizing the dynamo electric machine morespace than the ordinary magneto. With "such an arrangement, a very smalldynamoelectric machine may be used which will have, through the drivingmechanism, a sufficient driving effect to initially start theprime-mover and said prime-mover may therefore be made of a convenientsize to act 100 either alone or in conjunction with the dynamo electricmachine for starting the main prime-mover or engine, in as much as thedrive takes place through gears which give a maximum efiect.

It is also possible to 105,

actuate the dynamo electric machine from the prime-mover of the unit orfrom the main prime-mover.

From the above it is apparent that various combinations of drive may besecured 'in a no single unit and as hereinafter described .any 4 of thedesired effects may be secured through a single controlling apparatus.

Referring to'the drawings the numeral 1,

denotes the armature of the dynamo electric machine having a commutator24, suitable brushes 20, and fields 21, mounted within a V substantiallytubular casing 23, which provides proper bearings for a shaft 11.

The armature and appurtenant moving parts are mounted on a sleeve 25,which-sur rcunds the main shaft 11, that ,is connected with and is anextension of the crank shaft.

of the prime-mover 12, the cylinder of which is. indicated at 26.-Secured to the sleeve 25,

V at one end is a male clutch-part 2, which may be engaged an'ddisengaged through a lever'18, with the female clutch-part 3, that isprovided with an extended sleeve 3*. The opposite end of the sleeve 25,has keyed to it a female clutch-part 13, which may be engaged anddisengaged by a male clutch-part 14, through a suitable lever 19. Themale clutch-part 14, is keyed to slide upon the shaft 11, while the maleclutch-part 2, is

similarly arranged upon the sleeve 25.

At the extreme endof the shaft 11, and axially movable thereon is amale'clutchpart 10, controlled by a suitable leverl7,

for engagement and disengagementwith the female clutch-part 9. Thislatter member is integrally formed or properly connected with aninternal. gear 8, which' has on its exterior a band-brake 15, controlledby a suitable lever 15*. Axially arranged with reference to the gear 8,is a similarly formed gear 7 ,which is loosely mounted upon the sleeve3*. Within both of the gears 7, and 8, there is arranged a spider 5,which bears a pinion 6, that meshes with the teeth of both the internalgears. .This spider is keyed to the sleeve 3 ,;througha key 4.. The

gear 7, has properly formed on its exterior side gear-teeth 7, withwhich meshes a gear l6, which is properly arranged through intermediatesto-drive'the main engine 16*.

' junction with the pinion 6.

' The internal gears 7, and 8,

number of teeth. As designed'herein, there is a difi'erence of one toothin favor of gear 7 so that there will be a planetaryreduction action inthe operation of said gears in conthere is shown. 1n Fig. 2,

have a different it is understood that the gear 7, in this instance, isheld against movement, being connected with the shaft of the mainprimemover. To start the main prime-mover after starting the unitprime-mover 12, and

utilizing the force of the rotating armature when the clutch-parts 13,14, are engaged, the clutch-parts 2, and 3, are left in engagement, theband-brake 15, is engaged with the gear 8', and the clutch-parts 9, and10, are opened. Assuming the unit prime mover 12 to be in operation inorder to start the main prime mover using only the unit prime mover 12,the clutches 13, 14, 2 and 3 are engaged and the drive will betransmitted through 3, 4, 5, and 6, to 7 and 8. The brake 15 is nowapplied and will prevent 8 from revolving. VVhereupon the gear 7 willreceive motion and transmit same to the engine shaft through the gear 16and appur tenant parts. To operate the dynamo electric machine from theunit prime-mover 12,

the clutch-parts 13, 14, are closed, whilethe clutch-parts 2, and 3, and9, and 10, with the band-brake 15, are released. This gives a directdrive between the'prime-mover 12, and dynamo electric machine forfurnishing ignition, lighting and storage current. If, for any reason,the unit prime-mover 12, is not available for running the dynamoelectric machine, it is possible to drive the armaturedirectly from themain engine after it has been started. This is efiected by closing theclutch-parts 13, 14, 2, 3, 9, and 10, and opening the band-brake. M

From the above, it is apparent that almost any desired combination ofdriving efiects may be secured and the same reduction gears may beemployed in the various combinations. I

'. "As illustrating a means for controlling the various clutches, arotary and axially movable rod 30, provided with a the position ofseries of keys so-spaced that any of the several levers 31, '32, 33, 34,may be en gaged and turned to rock the respective shafts 35, 36,bell-crank-lever 37, and shaft 38, these parts being respectivelyconnected with the lever-arms 19, 18, band-brake 15, and lever-arm 17Obviously, any desired arrangement might be utilized for operating theseveral levers to secure the proper clutch connections herein describedas being of simple form. By shifting the shaft 30, axially, it may bepositioned to pick up and engage the several levers for giving anydesired combination. By then partially rotating the shaft, the desiredclutching and releasing actions will be effected.

' In the diagrammatic view illustrated in Fig. 5, the. unit isillustrated in conjunction with a storage battery A, a switch device B,which controls the circuit of the dynamo electric machine with referenceto the storage battery and the load or lamp circuit C, and ignitioncircuit D.

Any desired form of ignition may, of course, be used and as illustratedherein, there is a simple form of jump-spark.

In practice, it is preferable touse a dynamo electric machine having ashunt-field winding in conjunction with a series field winding, thusproviding a field excitation of opposed character to that of the shuntwinding and one which is always less than the latter.

With such a machine, as the armature speed increases and theelectro-motive force increases, the armature and series winding willvary, thus increasing the field excitation through the series coil whichis opposed to the shunt fieldwindings and consequent excitation. Theresultant field will be reduced since the electro-motive force of thegenerator is substantially proportional to the product of the armaturespeed and field strength any increase in speed tending to increase theelectro-motive force will produce a decreased field strength, thusmaintaining a substantially constant electro-motive force- The machinewill operate as a a differentially wound generator and as a compoundwound motor. Thus a maximum starting torque may be secured when runningas a motor andia substantially constant electro-motive force will besecured even though the armature be driven from and control by which itis possible to utilize comparatively small parts with maximum drivingeffects with reference to each other.

What I claim as my invention and desire to secure by Letters Patent is:I

In combination, a main engine, a smaller auxiliary engine, an electricplant including a motor dynamo and a storage battery and suitablecircuits, means whereby the auxiliary engine may drive the motor dynamodirect for generation of current, means whereby the motor dynamo maydriie the auxiliary engine indirectly, and means whereby the auxiliaryengine after it is started by the motor dynamo may drive the mainengine, for the purposes set forth.

JOHN ALLEN HEANY.

lVitnesses PAULINE ROBERTS,

M. Bone.

